Cleaning device for downcast tube well

Abstract

The utility model discloses a downcast tube well cleaning device, and relates to the technical field of downcast tube well cleaning, the downcast tube well cleaning device comprises a submersible pump, and further comprises a flushing assembly and a clamping assembly used for clamping the submersible pump in a downcast tube well, the flushing assembly comprises a shell concentrically arranged below the submersible pump and a rotating tube rotationally sleeved at the lower end of the shell, a plurality of water spraying openings are formed in the circumferential side and the bottom of the spray head, and the water spraying openings in the circumferential side of the spray head are all arranged in a manner of deviating from the circle center of the spray head; a three-way connector is fixedly installed at the output end of the submersible pump, and a flexible water pipe and a corrugated pipe are fixedly installed in the other two ports of the three-way connector respectively. According to the cleaning device for the downcast tube well, in the cleaning process, a silt layer at the bottom of the tube well can be effectively impacted through rotation of the spray head and multi-angle water spraying, silt and water are fully mixed, a cement mixture easy to discharge is formed, and therefore the purpose of removing the silt at the bottom of the tube well is achieved.

Description

Technical Field

[0001] This utility model relates to the field of dewatering well cleaning technology, specifically a dewatering well cleaning device. Background Technology

[0002] During civil construction, the main function of dewatering manholes is to lower the groundwater level and ensure the smooth progress of foundation pit construction. However, a large amount of mud and clay often accumulates at the bottom of the manholes. These deposits can block the permeability pores on the sides of the manholes, seriously affecting the permeability efficiency of the manholes and preventing the groundwater level from being effectively lowered. This, in turn, affects the safety and progress of foundation pit construction. Therefore, regularly cleaning the dewatering manholes to remove the sediment and mud deposited at the bottom and restore the permeability function of the manholes is an important step in ensuring the smooth progress of foundation pit construction.

[0003] Chinese Utility Model Patent Application No. CN202221766291.1 discloses a mud-water dredging device for a foundation pit dewatering well. The device includes a mud bucket, a piston, and a lifting structure. The lifting structure is fixedly connected to one end of the mud bucket. The piston is located inside the mud bucket, and a piston rod is fixedly connected to one end of the piston. The piston moves axially relative to the mud bucket, and its outer wall fits against the inner wall of the mud bucket. The piston divides the space inside the mud bucket into two chambers. This mud-water dredging device for foundation pit dewatering wells effectively reduces fluid outflow during retrieval by setting a first one-way valve on the piston and a second one-way valve on the frustum-shaped cylindrical section, thus improving work efficiency. However, this device can only extract mud from the well and cannot remove solid silt deposited at the bottom of the well, resulting in incomplete dredging.

[0004] Therefore, it is necessary to propose a dewatering well cleaning device to solve the above problems. Utility Model Content

[0005] Technical problem to be solved: The purpose of this utility model is to provide a dewatering well cleaning device to solve the problem mentioned in the background art of existing pit dewatering well bottom mud and water dredging devices, which can only pump out the mud in the well but cannot remove the solid mud and sand deposited at the bottom of the well, resulting in incomplete dredging.

[0006] Technical Solution: To achieve the above objectives, this utility model provides the following technical solution: A dewatering well cleaning device includes a submersible pump, a flushing assembly, and a clamping assembly for securing the submersible pump within the dewatering well. The flushing assembly includes a housing concentrically positioned below the submersible pump, a rotating tube rotatably mounted on the lower end of the housing, and a nozzle fixedly mounted on the lower end of the rotating tube. The nozzle has multiple spray nozzles on its periphery and bottom, all offset from the center of the nozzle. A tee connector is fixedly installed at the output end of the submersible pump. A flexible water pipe and a corrugated pipe are fixedly installed in the other two ports of the tee connector, respectively. The other end of the corrugated pipe is connected to the water inlet of the housing. Fixed cylinders are fixedly installed on both the left and right sides of the housing. A sliding rod is slidably mounted inside the fixed cylinder. The top end of the sliding rod is fixedly connected to the submersible pump, and the lower end extends out of the fixed cylinder and is fixedly fitted with a baffle.

[0007] Preferably, the mounting assembly includes a metal tube fixedly fitted inside the vertical port of the tee connector, and also includes multiple support rods evenly arranged around the periphery of the submersible pump. One end of the flexible water pipe is connected to the upper end of the metal tube. A counterweight ring is slidably fitted on the metal tube. Two lifting lugs are symmetrically fixedly installed on the top of the counterweight ring. Two connecting rods I are hinged vertically at intervals on each support rod. The two connecting rods I on the same support rod are parallel to each other, and the other ends of the two connecting rods I are hinged to the submersible pump. A connecting rod II is hinged to the top of each support rod, and the other ends of the multiple connecting rods II are hinged to the counterweight ring.

[0008] Preferably, the maximum distance from the lower end of the nozzle to the lower end of the submersible pump is a, the minimum distance is b, and the maximum distance from the base plate to the lower end of the submersible pump is c, where a>c>b.

[0009] Preferably, a base plate is fixedly installed at the lower end of the support rod.

[0010] Beneficial effects: Compared with the prior art, this utility model provides a dewatering well cleaning device with a unique structure and convenient use. During the cleaning process, the rotation of the nozzle and the multi-angle water spray can effectively impact the mud and sand layer at the bottom of the well, so that the mud and sand are fully mixed with water to form a cement mixture that is easy to discharge, thereby achieving the purpose of removing mud and sand from the bottom of the well. At the same time, the design of the clamping component ensures the stability of the cleaning device in the well, avoiding the problem of incomplete cleaning caused by device shaking. The entire cleaning process is simple to operate and can be completed by lifting equipment without complicated tools and equipment, saving manpower and time costs. Attached Figure Description

[0011] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model;

[0012] Figure 2This is a front view schematic diagram of the structure of this utility model;

[0013] Figure 3 This utility model Figure 1 Enlarged schematic diagram of the structure in area A;

[0014] Figure 4 This is a cross-sectional schematic diagram of the nozzle structure of this utility model.

[0015] In the diagram: 1. Submersible pump; 2. Flushing assembly; 21. Housing; 22. Rotating pipe; 23. Nozzle; 24. Spray nozzle; 25. Fixed cylinder; 26. Sliding rod; 27. T-joint; 28. Flexible water pipe; 29. ​​Corrugated pipe; 3. Mounting assembly; 31. Metal pipe; 32. Counterweight ring; 33. Lifting lug; 34. Support rod; 35. Connecting rod I; 36. Connecting rod II; 37. Base plate. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Example 1: This example provides a dewatering well cleaning device, which is a direct improvement on the existing well bottom mud and water dredging device for foundation pit dewatering wells. It has a unique structure. Please refer to [link / reference]. Figure 1-4 As shown, the system includes a submersible pump 1, a flushing assembly 2, and a clamping assembly 3 for securing the submersible pump 1 within a dewatering well. The flushing assembly includes a housing 21 concentrically positioned below the submersible pump 1, a rotating tube 22 rotatably mounted on the lower end of the housing 21, and a nozzle 23 fixedly mounted on the lower end of the rotating tube 22. The nozzle 23 has multiple spray nozzles 24 on its periphery and bottom, all offset from the center of the nozzle 23. The rotating tube 22 can be installed in various ways, such as by rotating it at the lower end of the housing 21 via bearings, with both ends of the rotating tube 22 connected to the interior of the housing 21 and the nozzle 23, respectively. A three-way connector 27 is fixedly installed at the output end of the submersible pump 1. A flexible water pipe 28 and a corrugated pipe 29 are fixedly installed in the other two ports of the three-way connector 27, respectively. The other end of the corrugated pipe 29 is connected to the inlet of the housing 21. Fixed cylinders 25 are fixedly installed on both the left and right sides of the housing 21. A sliding rod 26 is slidably fitted inside the fixed cylinder 25. The top end of the sliding rod 26 is fixedly connected to the submersible pump 1, and the lower end extends out of the fixed cylinder 25 and is fixedly installed with a baffle.

[0018] The mounting assembly 3 includes a metal tube 31 fixedly fitted into the vertical port of the tee connector 27, and multiple support rods 34 evenly arranged around the submersible pump 1. One end of the flexible water pipe 28 is connected to the upper end of the metal tube 31. A counterweight ring 32 is slidably fitted on the metal tube 31. Two lifting lugs 33 are symmetrically fixedly installed on the top of the counterweight ring 32. Two connecting rods I 35 are hinged vertically at intervals on each support rod 34. The two connecting rods I 35 on the same support rod 34 are parallel to each other, and the other ends of the two connecting rods I 35 are hinged to the submersible pump 1. A connecting rod II 36 is hinged to the top of each support rod 34, and the other ends of the multiple connecting rods II 36 are hinged to the counterweight ring 32. The maximum distance from the lower end of the nozzle 23 to the lower end of the submersible pump 1 is a, and the minimum distance is b. The maximum distance from the base plate 37 to the lower end of the submersible pump 1 is c, where a>c>b.

[0019] Working principle: When using this device to clean the dewatering pipe well, the cleaning device is first suspended in the pipe well using a hoisting device. When the cleaning device is suspended, multiple support rods 34 will converge and retract together, slowly lowering the cleaning device until the lower end of the support rods 34 contacts the mud and sand layer in the pipe well. Then, the hoisting rope of the hoisting device continues to be lowered. At this time, the counterweight ring 32 continues to move downward along the metal pipe 31, so that the distance between the counterweight ring 32 and the top of the support rod 34 continuously decreases. During this process, multiple support rods 34 will expand outward simultaneously until they contact the inner wall of the pipe well, thereby locking the submersible pump 1 in the pipe well under the action of the clamping assembly 3.

[0020] The submersible pump 1 is started to pump water out of the well. The water pumped by the submersible pump 1 is divided into two parts through the three-way connector 27. One part is discharged from the well through the metal pipe 31 and the flexible water pipe 28, and the other part is transported to the nozzle 23 through the corrugated pipe 29, the housing 21 and the rotating pipe 22. The water is then sprayed out from the nozzle 23 and the water nozzles 24 on the periphery and bottom of the nozzle. Since the multiple water nozzles 24 on the periphery of the nozzle 23 are offset from the axis of the nozzle 23, the water flow will drive the nozzle 23 to rotate after being sprayed out from the water nozzles 24 on the periphery of the nozzle. This continuously impacts the mud and sand on the periphery of the nozzle 23, causing the mud and sand on the mud and sand layer to mix with the water in the well to form a cement mixture, which can be discharged from the well by the submersible pump 1.

[0021] Since the maximum distance from the lower end of the nozzle 23 to the lower end of the submersible pump 1 is a and the minimum distance is b, and the maximum distance from the base plate 37 to the lower end of the submersible pump 1 is c, where a>c>b, when the lower end of the support rod 34 contacts the mud and sand layer, the lower end of the nozzle 23 also contacts the mud and sand layer. After the submersible pump 1 is working, the water flow is discharged from the spray nozzle 24 at the bottom of the nozzle 23 and continuously impacts the mud and sand layer below, causing the middle part of the mud and sand layer to be concave and form a hole.

[0022] Since the nozzle 23 will always be in contact with the mud and sand layer, the housing 21 will move downward along the slide bar 26. When the nozzle 23 is inserted into the hole in the middle of the mud and sand layer, the water flow discharged from the water outlet 24 around the nozzle 23 will continuously impact the mud and sand around the hole until the mud and sand below the support rod 34 is washed away. When the nozzle 23 moves to the bottom, the cleaning device is suspended again by the lifting equipment, so that the multiple support rods 34 are gathered together. Then the cleaning device is lowered again until the lower end of the support rod 34 is in contact with the mud and sand layer again. In this way, the mud and sand layer is continuously impacted, so that the mud and sand and water form a mixture and are discharged from the well by the submersible pump 1. When the water discharged from the well by the submersible pump 1 is relatively clear, the cleaning work of the well is completed, and the cleaning device is lifted out of the well.

[0023] Example 2: The difference between Example 2 and Example 1 is that, as shown in Figures 1-3, a base plate 37 is fixedly installed at the lower end of the support rod 34. By setting the base plate 37 at the lower end of the support rod 34, a greater supporting force can be provided for the cleaning device, and the lower end of the support rod 34 can be prevented from inserting into the mud and sand layer.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dewatering well cleaning device, comprising a submersible pump (1), characterized in that: It also includes a flushing assembly (2) and a clamping assembly (3) for clamping the submersible pump (1) in the dewatering well. The flushing assembly includes a housing (21) concentrically arranged below the submersible pump (1), a rotating tube (22) rotatably fitted at the lower end of the housing (21), and a nozzle (23) fixedly installed at the lower end of the rotating tube (22). The nozzle (23) has spray nozzles (24) on its periphery and bottom. There are multiple spray nozzles (24) on the periphery of the nozzle (23), and they are all set off from the center of the nozzle (23). A three-way connector (27) is fixedly installed at the output end of the submersible pump (1). A flexible water pipe (28) and a corrugated pipe (29) are fixedly installed in the other two ports of the three-way connector (27). The other end of the corrugated pipe (29) is connected to the water inlet of the housing (21). Fixed cylinders (25) are fixedly installed on both the left and right sides of the housing (21). A sliding rod (26) is slidably fitted inside the fixed cylinder (25). The top of the slide bar (26) is fixedly connected to the submersible pump (1), and the bottom extends out to the fixed cylinder (25) and is fixedly installed with a baffle.

2. The dewatering well cleaning device according to claim 1, characterized in that: The mounting assembly (3) includes a metal tube (31) fixedly fitted in the vertical port of the tee connector (27), and also includes multiple support rods (34) evenly arranged around the periphery of the submersible pump (1). One end of the flexible water pipe (28) is connected to the upper end of the metal tube (31). A counterweight ring (32) is slidably fitted on the metal tube (31). Two lifting lugs (33) are symmetrically fixedly installed on the top of the counterweight ring (32). Two connecting rods I (35) are hinged vertically at intervals on each support rod (34). The two connecting rods I (35) on the same support rod (34) are parallel to each other, and the other ends of the two connecting rods I (35) are hinged to the submersible pump (1). A connecting rod II (36) is hinged to the top of each support rod (34), and the other ends of the multiple connecting rods II (36) are hinged to the counterweight ring (32).

3. The dewatering well cleaning device according to claim 1, characterized in that: The maximum distance from the lower end of the nozzle (23) to the lower end of the submersible pump (1) is a, and the minimum distance is b. The maximum distance from the base plate (37) to the lower end of the submersible pump (1) is c, where a > c > b.

4. The dewatering well cleaning device according to claim 2, characterized in that: The lower end of the support rod (34) is fixedly installed with a base plate (37).

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